Lighting device using combined power generation

A lighting device using combined power generation, the lighting device comprising:

• a first power generation part (100) comprising a first thermoelectric element (110) whose first surface has a high temperature part formed by solar heat, the first power generation part (100) being configured to generate electrical energy by using the first thermoelectric element (110);
• a second power generation part (200) comprising a second thermoelectric element (210) whose first surface has a high temperature part formed by heat generated from an LED module (240), the second power generation part (200) being configured to generate electrical energy by using the second thermoelectric element (210);
• and
• a cooling part (300) which is provided between the first power generation part (100) and the second power generation part (200) and simultaneously cools a second surface of each of the first thermoelectric element (110) and the second thermoelectric element (210),
• wherein the first power generation part (100) further comprises:
• a first cooling plate (120) configured such that the second surface of the first thermoelectric element (110) is located at an adjacent upper side of the first cooling plate (120) and the cooling part (300) is located at an adjacent lower side of the first cooling plate (120);
• and a first heat collection plate (130) which is provided at an upper side adjacent to the first thermoelectric element (110) and collects heat from the sun,
• the second power generation part (200) further comprises:
• a second cooling plate (220) configured such that the cooling part (300) is located at an adjacent upper side of the second cooling plate (220) and the second surface of the second thermoelectric element (210) is located at an adjacent lower side of the second cooling plate (220);
• and a second heat collection plate (230) which is provided between the first surface of the second thermoelectric element (210) and the LED module (240) and collects heat generated from the LED module (240),
• in the cooling part (300), inlet and outlet (310) through which air is introduced and discharged are formed correspondingly in directions facing each other and cooling is performed by air introduced through a first side of the cooling part (300) from the outside and discharged through a second side thereof to the outside, and
• the lighting device further comprises a third power generation part (500) that generates electrical energy by using sunlight.